Re: [matplotlib-devel] Fixed contouring bugs.

[Eric F. <ef...@ha...>]

Ian Thomas wrote:
> Hello all,
> 
> I think I have fixed two bugs in the contouring code (src/cntr.c):
> 1) inconsistent behaviour in how contour and contourf handle saddle
> grid squares, and
> 2) incorrect handling of masked regions in filled contour plots.
> 
> Attached is a gzipped tar file containing an explanation of the bugs
> and what I've done, as well as an svn diff against HEAD and small
> example scripts to demonstrate the bugs before and after the fixes.
> 
> I have tested the fixes for the cases I normally come up with, but
> this is by no means exhaustive.
> 
> Ideally it would be good if someone who is more familiar with cntr.c
> than I am could take a look at what I've done and see if it is OK.

Ian,

I will take a look, and commit the changes if things look OK.  I suspect 
Mike D. and I are the most familiar with this code (apart from the 
original author--and I don't know who that is); both of us have tried 
unsuccessfully to solve the masked region problem.  If you have solved 
these problems, that's fantastic!

Eric